From: Paul Ramsey <pramsey@cleverelephant.ca>
Date: Mon, 2 Oct 2017 22:29:18 +0000 (+0000)
Subject: Fix union issue (References #3871)
X-Git-Tag: 2.4.1~20
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=6065d27f20cf16c30d64c10e0ac6069cd2365aed;p=postgis

Fix union issue (References #3871)



git-svn-id: http://svn.osgeo.org/postgis/branches/2.4@15877 b70326c6-7e19-0410-871a-916f4a2858ee
---

diff --git a/liblwgeom/g_serialized.c b/liblwgeom/g_serialized.c
index 54a8df3ec..fd1d2abbe 100644
--- a/liblwgeom/g_serialized.c
+++ b/liblwgeom/g_serialized.c
@@ -243,14 +243,11 @@ static uint64_t uint32_interleave_2(uint32_t u1, uint32_t u2)
 
 uint64_t gbox_get_sortable_hash(const GBOX *g)
 {
-	union x {
-		uint32_t u;
-		float f
-	};
-	union y {
+
+	union floatuint {
 		uint32_t u;
-		float f
-	};
+		float f;
+	} x, y;
 
 	/*
 	* Since in theory the bitwise representation of an IEEE
@@ -272,7 +269,7 @@ uint64_t gbox_get_sortable_hash(const GBOX *g)
 	}
 	else
 	{
-		/* 
+		/*
 		* Here we'd like to get two ordinates from 4 in the box.
 		* Since it's just a sortable bit representation we can omit division from (A+B)/2.
 		* All it should do is subtract 1 from exponent anyways.